EP0102780A1 - Système de pompe - Google Patents

Système de pompe Download PDF

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Publication number
EP0102780A1
EP0102780A1 EP83304641A EP83304641A EP0102780A1 EP 0102780 A1 EP0102780 A1 EP 0102780A1 EP 83304641 A EP83304641 A EP 83304641A EP 83304641 A EP83304641 A EP 83304641A EP 0102780 A1 EP0102780 A1 EP 0102780A1
Authority
EP
European Patent Office
Prior art keywords
fluid
chamber
plunger
pressure
conduit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83304641A
Other languages
German (de)
English (en)
Other versions
EP0102780B1 (fr
Inventor
Kiyoshi Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inoue Japax Research Inc
Original Assignee
Inoue Japax Research Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inoue Japax Research Inc filed Critical Inoue Japax Research Inc
Publication of EP0102780A1 publication Critical patent/EP0102780A1/fr
Application granted granted Critical
Publication of EP0102780B1 publication Critical patent/EP0102780B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity

Definitions

  • The'present invention relates to fluid pumping systems for various operating fluids such as 'liquids (e.g. water or oil) and gases (e.g. air) and more particularly - to a new and improved fluid pumping system designed on novel principles.
  • a novel system herein disclosed may be used, among other . purposes, for circulating water through an aquarium, or tank, pool or pond in which living aquatic animals or plants are kept, or for circulating air through such aquatic facilitites, or for periodically or continuously pumping oxygen (air) in sewage treatment processes.
  • an object of the present invention to provide a fluid pumping system which obviates the conventional problems whereby a greater proportion of input power can be available for the actual pumping action and achievement.
  • a fluid pumping system which comprises a fluid-reception chamber having an inlet conduit leading from a fluid source site and an outlet conduit leading to a fluid delivery site; an elongate plunger means drivingly connected with the chamber and linearly reciprocable along its longitudinal axis so as to alternately expand and contract a volume of the chamber, thereby alternately drawing a fluid therein through the inlet conduit from the source site and pumping the fluid through the outlet conduit towards the delivery site; and electromagnetically operated drive means for effecting the linear reciprocation of the plunger means at a rate of reciprocation in the range between 0.01 and 10 Hz.
  • the system may further comprise sensing means for monitoring the pressure of the input fluid in the inlet conduit, and control means responsive to the sensing means for controlling the drive means so as to maintain the pressure of the inlet fluid drawn into the said chamber substantially constant.
  • the control means may be operative to halt the plunger means when the pressure exceeds a predetermined value.
  • sensing means for monitoring the pressure of the output fluid in the outlet conduit
  • control means responsive to the sensing means for controlling the said drive means so as to maintain the pressure of the output fluid pumped out of the chamber substantially constant.
  • the control means may be operative to halt the plunger means when the pressure exceeds a predetermined value.
  • the system according to the invention further comprises: a second fluid-reception chamber having a second inlet conduit and a second outlet conduit, the second and the first-mentioned inlet conduits being interconnected at an inlet junction which leads from the said source site via a common inlet conduit, the second and the first-mentioned outlet conduits being interconnected at an outlet junction which leads to the delivery site via a common outlet conduit; and a second elongate plunger means drivingly connected with the second chamber and linearly reciprocable along its longitudinal axis so as to alternately expand and contract a volume of the second chamber, thereby alternately drawing the fluid therein through the second inlet conduit from the said source site and pumping the fluid through the second outlet conduit towards the said delivery site; the second plunger means being mechanically coupled with the first plunger means via linkage means so that when the first plunger means tends to expand the volume of the first chamber, the second plunger means acts to contract the volume of the second chamber and when the first plunger means tends to contract the volume of the first chamber
  • the system may further comprise sensing means for monitoring the pressure of the input fluid in the said common inlet conduit, and control means responsive to the sensing means for controlling the said drive means so as to maintain the pressure of the input fluid drawn through the common inlet conduit substantially constant.
  • the control means may be operative to halt the two plunger means when the pressure exceeds a predetermined value.
  • sensing means for monitoring the pressure of the input fluid in the common outlet conduit
  • control means responsive to the sensing means for controlling the said drive means so as to maintain the output fluid pumped through the common outlet conduit substantially constant.
  • the control means may be operative to halt the two plunger means when said pressure exceeds a predetermined value.
  • the fluid pumping system illustrated includes a variable-volume, fluid-reception chamber 10 which in the illustrated embodiment is defined inside a flexible bag 11 composed of, e.g. a rubber of sufficient toughness.
  • the bag 11 may be of the bellows type.
  • the chamber 10 has a fluid inlet part 12 connected via an inlet conduit 13 with a fluid supply site 14.
  • the chamber 10 also has a fluid exhaust part 15 connected via an outlet conduit 16 with a fluid delivery site 17.
  • the ports 12 and 15 are provided with valves 18 and 19 respectively.
  • the inlet valve 18 When the bag 11 tends to be expanded to increase the volume of the chamber 10, the inlet valve 18 is opened to draw a fluid from the supply site 14 into the chamber 10 and the exhaust valve 19 is closed to retain the fluid therein.
  • the inlet valve 18 When the bag 11 tends to contract to decrease the volume of the chamber 10, the inlet valve 18 is closed and the exhaust valve 19 is opened to force the fluid out of the chamber 10 towards the -delivery site 17 via the outlet conduit 16.
  • the volume of the chamber 10 is alternately increased and, decreased by means of a linearly reciprocating plunger means 20 operatively connected therewith.
  • the means 20 is linearly elongated in its longitudinal axis and comprises linearly interconnected three parts 21,22 and 23.
  • One end plunger 23 is attached to the bag 11, and this and the other end plunger 21 together serve to journal the assembly 20 on a pair of bearing means 24 and 25 to allow the intermediate plunger 22 to be linearly reciprocated as an active output member in electromagnetically operated drive means (50) to be described.
  • the illustrated embodiment also includes a second variable-volume, fluid-reception chamber 27 which is again defined inside a second flexible bag 28 which may be of a specification identical to that of the first-mentioned flexible bag 11.
  • the chamber 27 has a fluid inlet port 29 communicating via an inlet conduit 30 with the fluid supply site 14.
  • the conduit 30 and the first-mentioned inlet conduit 13 are interconnected at an inlet junction 31 which is connected to the fluid supply site via a common inlet conduit 32.
  • the chamber 27 also has a fluid exhaust port 33 communicating via an outlet conduit 34 with the fluid delivery site 17.
  • the conduit 34 and-the first-mentioned outlet conduit 16 are interconnected at an outlet junction 35 which is connected to the fluid delivery site 17 via a common outlet conduit 36.
  • the ports 29 and 33 are provided with valves 37 and 38, respectively.
  • the inlet valve 37 is opened to draw the fluid from the supply site 14 into the chamber 27 and the exhaust valve 38 is closed to retain the fluid introduced therein.
  • the inlet valve 37 is closed and the exhaust valve 38 is opened to force the fluid out of the chamber 27 towards the delivery site 17.
  • the volume of the second chamber 27 is alternately increased and decreased by means of a second linearly reciprocating plunger means 40 attached to the bag 28 and which, journaled on bearing means 41 and 42, extends in parallel with the first-mentioned plunger means 20.
  • the two plunger means are mechanically coupled by means of a linkage 43 so that when the first plunger means 20 is moved from right to left, the second plunger means 40 is moved from left to right, and when the first plunger means is moved from left to right, the second plunger means 40 is moved from right to left.
  • the electromagnetically operated drive means referred to is constituted preferably by a linear motor arrangement as used in the illustrated embodiment.
  • the active plunger 22 is composed of a magnetic material and is formed along its one lateral surface with a plurality of equi-distantly spaced magnetic teeth or projections 51-57 having an equal pitch L1 and arranged linearly.
  • the distance L2 between the centres of poles p1 and p2 in each core member and hence in each electromagnet 61,62,63 is equal to the pitch L1 of the teeth on the plunger member 22.
  • the distance L3 between the centres of adjacent pole shoes p2 and p1 of adjacent electromagnets is here dimensioned to be equal to 4/3 L1.
  • the distance L4 between the centres of the U-shaped core members of adjacent electromagnets is dimensioned to be equal to 7/3 L1.
  • the coils 61b,62b,63b of the electromagnets shown are individually energised by a DC source 64 via switches 65, 66 and 67, respectively.
  • the switches 65, 66 and 67 are successively switched on and off by a switching control circuit 68 to effect a pulsed energisation of the coils 61b, 62b and 63b in succession.
  • the plunger means 20 is caused to linearly move from its predetermined left-hand end to its predetermined right-hand end to reduce the volume of the chamber 10 from a predetermined maximum extent to a predetermined minimum extent while increasing the volume of the chamber 27 from such a minimum extent to such a maximum extent.
  • the reversed linear movement and hence the reversed volume changes of the chambers 10 and 27 can be provided by switching on and off the coil-energising switches in the order of 67, 66 and 65.
  • a cyclic linear reciprocation of the plunger means 20 to draw the fluid from the supply site 14 and to pump the fluid into the delivery site 17 is thus achieved.
  • the rate of reciprocation of the plunger means 20 is set in the range of 0.01 to 10 Hz in the switching circuit 68.
  • a pressure sensor 71 is shown provided in the outlet conduit 36 for monitoring the pressure of the pumped outlet fluid to be fed to the delivery site 17 to provide a signal representing an instantaneous or average pressure level of the pumped output fluid.
  • This signal is applied to a discriminator circuit 72 having a threshold level preset therein to correspond to a desired pressure level.
  • the discriminator circuit 72 acts to provide a control signal which is applied to the control circuit 68 to alter the rate of linear reciprocation of the plunger member so as to restore the pressure of the pumped output fluid to the preselected level.
  • a pressure sensor may alternatively or in addition be provided, as designated at 73, in the inlet conduit 32 for monitoring the pressure of the fluid being drawn into the chamber 10,27 from the supply site 14.
  • the sensor 73 provides a signal representing an instantaneous or average pressure level of the drawn input fluid.
  • the signal is applied to a discriminator 74 having a threshold valve preset to correspond to a desired input pressure level.
  • the discriminator 74 here again acts to provide a control signal which is applied to the switching circuit 68 to alter the rate of linear reciprocation of the plunger means 20 so as to return the pressure of the pumped output fluid to the preselected level.
  • the valves 18, 19, 37 and 38 are preferably of the electromagnetic type. To this end, the valves 18 and 19; 37 and 38 have attached respectively thereto permanent magnets 18a and 19a; 37a and 38a and are respectively associated with solenoids 75; and 76.
  • the solenoids 75 and 76 are energisable each with two alternating signals of opposite polarities furnished from a power supply 77 in response to two timing signals which are furnished from the switching control circuit 68.
  • the power supply 77 furnishes the solenoids 75 and 76 with a first energisation signal of one polarity.
  • the solenoid 75 is energised with this signal to magnetically attract the magnet 18a, thereby closing the inlet valve 18 and to magnetically repel the magnet 19a, thereby opening the exhaust valve 19, thus bringing the first chamber 10 into the pumping mode.
  • the solenoid 76 is energised with the first energisation signal to magnetically attract the magnet 38a, thereby closing the exhaust valve 38 and to magnetically repel the magnet 39a, thereby closing the inlet valve 39, thus bringing the second chamber 27 into the suction mode.
  • the control circuit 68 furnishes a second timing signal indicating that the plunger means 20 is switching the direction of its linear movement from rightward to leftward
  • the power supply 77 furnishes the solenoids 75 and 76 with a second energisation signal of the polarity opposite to that mentioned above. It will be seen that this signal brings the first chamber 10 into the suction mode and the second chamber 27 into the pumping mode.
EP83304641A 1982-08-12 1983-08-11 Système de pompe Expired EP0102780B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP140354/82 1982-08-12
JP57140354A JPS5929786A (ja) 1982-08-12 1982-08-12 ポンプ装置

Publications (2)

Publication Number Publication Date
EP0102780A1 true EP0102780A1 (fr) 1984-03-14
EP0102780B1 EP0102780B1 (fr) 1987-11-04

Family

ID=15266871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83304641A Expired EP0102780B1 (fr) 1982-08-12 1983-08-11 Système de pompe

Country Status (4)

Country Link
US (1) US4518317A (fr)
EP (1) EP0102780B1 (fr)
JP (1) JPS5929786A (fr)
DE (2) DE102780T1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249655A1 (fr) * 1985-12-05 1987-12-23 Takeshi Hoya Arrangement assemblé multiple de pompes à membrane
EP0332378A2 (fr) * 1988-03-08 1989-09-13 Framo Developments (U.K.) Limited Unité d'électropompe
EP0361927A1 (fr) * 1988-09-29 1990-04-04 Artemis Intelligent Power Ltd. Méthode de contrôle d'une pompe et soupape en champignon pour cette pompe
GB2235072A (en) * 1989-05-16 1991-02-20 Nitto Kohki Co Outlet pressure control system for electromagnetic reciprocating pump
WO1991005163A1 (fr) * 1988-09-29 1991-04-18 The University Of Edinburgh Machine a fonctionnement fluidique ameliore
WO2008012587A3 (fr) * 2006-07-27 2008-05-08 Artemis Intelligent Power Ltd Système et dispositif de modulation de couple de pompe/moteur hydraulique numérique

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944748A (en) * 1986-10-12 1990-07-31 Bramm Gunter W Magnetically suspended and rotated rotor
US5078741A (en) * 1986-10-12 1992-01-07 Life Extenders Corporation Magnetically suspended and rotated rotor
JPS6157176U (fr) * 1984-09-20 1986-04-17
US4687054A (en) * 1985-03-21 1987-08-18 Russell George W Linear electric motor for downhole use
US4787823A (en) * 1985-05-22 1988-11-29 Hultman Barry W Electromagnetic linear motor and pump apparatus
US4815949A (en) * 1985-06-24 1989-03-28 Rabson Thomas A In-well submersible motor with stacked component stator
US4822250A (en) * 1986-03-24 1989-04-18 Hitachi, Ltd. Apparatus for transferring small amount of fluid
US4825819A (en) * 1986-08-06 1989-05-02 Moog Inc. Hypergolic/catalytic actuator
US4874299A (en) * 1987-04-08 1989-10-17 Life Loc, Inc. High precision pump
US4936758A (en) * 1987-08-10 1990-06-26 Aci Medical, Inc. Diaphragm pump
US5106276A (en) * 1988-03-11 1992-04-21 Reinhart Lawrence W Electrohydraulic method and apparatus
US4913180A (en) * 1988-11-03 1990-04-03 Bahm, Inc. Control system and method for chemical injectors
US5006104A (en) * 1988-11-07 1991-04-09 The Cleveland Clinic Foundation Heart pump having contractible guide mechanism for pusher plate
US5049046A (en) * 1990-01-10 1991-09-17 Escue Research And Development Company Pump control system for a downhole motor-pump assembly and method of using same
DE4401680A1 (de) * 1994-01-21 1994-06-16 Eberhard Dipl Ing Weber Elektronisch gesteuertes Pumpenaggregat unter Anwendung eines Flüssigkeitsdruckes
DE4439209C2 (de) * 1994-11-03 1996-05-02 Eberhard Dipl Ing Weber Hochruck-Reinigungspistole mit integriertem Kolbenaggregat
US6203288B1 (en) 1999-01-05 2001-03-20 Air Products And Chemicals, Inc. Reciprocating pumps with linear motor driver
JP3876611B2 (ja) * 2000-11-02 2007-02-07 株式会社日立製作所 流体搬送装置
US6717094B2 (en) 2002-07-22 2004-04-06 Edward L. Beaumont Electrical discharge machine and methods of establishing zero set conditions for operation thereof
EP2611728A4 (fr) * 2010-08-30 2015-07-22 Flow Control LLC Système de distribution de liquide commandé électroniquement et présentant une conception modulaire de tubage et d'alimentation
US20210190053A1 (en) * 2018-08-17 2021-06-24 S.P.M. Flow Control, Inc. Actuator for a reciprocating pump

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Publication number Priority date Publication date Assignee Title
GB190108536A (en) * 1901-04-25 1901-06-08 Eduard Wuhrmann Improvements in and relating to Pumps.
US1654859A (en) * 1927-05-13 1928-01-03 James H Campbell Double-cylinder pump
GB1192911A (en) * 1966-03-15 1970-05-28 Hamilton Tool & Gauge Ltd A Diaphragm Pump
DE1965789A1 (de) * 1969-12-23 1971-07-01 Hiroshi Chiba Elektromagnetische Pumpe
DE1653387B1 (de) * 1967-10-12 1971-08-12 Messerschmitt Boelkow Blohm Membranpumpe
FR2385911A1 (fr) * 1977-03-31 1978-10-27 Petit Et Co Sarl A Procede de pompage autonome et installation pour la mise en oeuvre de ce procede

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US317629A (en) * 1885-05-12 Refrigerating apparatus
US1351210A (en) * 1919-11-08 1920-08-31 Lyman J Clarke Pumping mechanism for stationary vacuum-cleaners
DE382038C (de) * 1922-05-10 1923-09-27 Arthur Schneider Pumpenanlage fuer Tankschiffe
FR602152A (fr) * 1925-08-18 1926-03-13 Perfectionnements aux pompes alternatives à membranes
US2003647A (en) * 1930-06-04 1935-06-04 Dillstrom Torbjorn Viktor Electric motor
AT194870B (de) * 1955-12-07 1958-01-25 Licentia Gmbh Elektromagnetischer Schwingkompressor vorzugsweise für Kältemaschinen
US3292065A (en) * 1964-01-27 1966-12-13 Superior Electric Co Linear electric motor and control system
US3411704A (en) * 1966-09-26 1968-11-19 Johnson Service Co Pneumatic controller
US3894275A (en) * 1973-12-11 1975-07-08 Quebec Centre Rech Ind Linear step motor
JPS5427123U (fr) * 1977-07-26 1979-02-22
US4272226A (en) * 1979-01-08 1981-06-09 Osborne Harry E Fluid pump and method for operating same
US4330238A (en) * 1980-03-04 1982-05-18 The United States Of America As Represented By The Secretary Of The Navy Automatic actuator for variable speed pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190108536A (en) * 1901-04-25 1901-06-08 Eduard Wuhrmann Improvements in and relating to Pumps.
US1654859A (en) * 1927-05-13 1928-01-03 James H Campbell Double-cylinder pump
GB1192911A (en) * 1966-03-15 1970-05-28 Hamilton Tool & Gauge Ltd A Diaphragm Pump
DE1653387B1 (de) * 1967-10-12 1971-08-12 Messerschmitt Boelkow Blohm Membranpumpe
DE1965789A1 (de) * 1969-12-23 1971-07-01 Hiroshi Chiba Elektromagnetische Pumpe
FR2385911A1 (fr) * 1977-03-31 1978-10-27 Petit Et Co Sarl A Procede de pompage autonome et installation pour la mise en oeuvre de ce procede

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* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Section El., week D 40, November 11, 1981, DERWENT PUBLICATIONS LTD, London X 25 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249655A1 (fr) * 1985-12-05 1987-12-23 Takeshi Hoya Arrangement assemblé multiple de pompes à membrane
EP0332378A2 (fr) * 1988-03-08 1989-09-13 Framo Developments (U.K.) Limited Unité d'électropompe
AU622438B2 (en) * 1988-03-08 1992-04-09 Framo Engineering As Electrically powered pump unit
US5083905A (en) * 1988-03-08 1992-01-28 Framo Developments (Uk) Limited Linear motor powered pump unit
EP0332378A3 (en) * 1988-03-08 1990-06-13 Framo Developments (U.K.) Limited Electrically powered pump unit
WO1991005163A1 (fr) * 1988-09-29 1991-04-18 The University Of Edinburgh Machine a fonctionnement fluidique ameliore
WO1990003519A1 (fr) * 1988-09-29 1990-04-05 The University Court Of The University Of Edinburgh Commande de pompe et sa soupape a champignon
EP0361927A1 (fr) * 1988-09-29 1990-04-04 Artemis Intelligent Power Ltd. Méthode de contrôle d'une pompe et soupape en champignon pour cette pompe
US5190446A (en) * 1988-09-29 1993-03-02 The University Court Of The University Of Edinburgh Pump control method and poppet valve therefor
US5259738A (en) * 1988-09-29 1993-11-09 University Of Edinburgh Fluid-working machine
GB2235072A (en) * 1989-05-16 1991-02-20 Nitto Kohki Co Outlet pressure control system for electromagnetic reciprocating pump
GB2235072B (en) * 1989-05-16 1993-09-08 Nitto Kohki Co Outlet pressure control system for electromagnetic reciprocating pump
WO2008012587A3 (fr) * 2006-07-27 2008-05-08 Artemis Intelligent Power Ltd Système et dispositif de modulation de couple de pompe/moteur hydraulique numérique
US8348627B2 (en) 2006-07-27 2013-01-08 Artemis Intelligent Power Ltd Digital hydraulic pump/motor torque modulation system and apparatus
CN101517230B (zh) * 2006-07-27 2013-09-04 阿特米斯智能动力有限公司 流体工作机械及控制流体工作机械的方法

Also Published As

Publication number Publication date
DE102780T1 (de) 1985-01-31
EP0102780B1 (fr) 1987-11-04
JPS5929786A (ja) 1984-02-17
US4518317A (en) 1985-05-21
DE3374329D1 (en) 1987-12-10

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